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I've created the EdgeBoxes.cpp Example DLL for LabVIEW using OpenCV. I'm trying to open the model file in the DLL but all I get is an assertion fail. I also created VI's for morphology, Corner detection, hough transformation but never got any error messages like that.

I tried:

Every path combination using Forward slashes or back slashes. Putting every file into the same Folder(also in C:). (LabVIEW VI, DLL, ModelFile) To open it in LabVIEW first with "Open/Create/Replace.vi" To open the extracted model.yml file instead of model.yml.gz That's the point where I'm clueless:

string filename = "C:\model.yml.gz" Ptr<structurededgedetection> pDollar; = createStructuredEdgeDetection(filename); Error Message I'm receiving:

Error -1002 occurred at OpenCV(4.0.1-dev) C:\OpenCV\opencv_contrib-master\modules\ximgproc\src\structured_edge_detection.cpp:432: error: (-215:Assertion failed) modelFile.isOpened() in function 'cv::ximgproc::StructuredEdgeDetectionImpl::StructuredEdgeDetectionImpl'

I tried to read the file with ifstream and it seems like I can acess the file without any Problems (Code below). So the reason why it won't work seems to be in context with OpenCV?

std::ifstream is(filename, std::ifstream::binary);

is.seekg(0, is.end); int length = is.tellg(); is.seekg(0, is.beg);

char * buffer = new char[length];

is.read(buffer, length); is.close(); delete[] buffer; // buffer contains the entire file Update: 2

Now I tried to open the file like OpenCV does after calling:

createStructuredEdgeDetection(filename); After that OpenCV tries to open the file with: See Row 431 https://github.com/opencv/opencv_contrib/blob/master/modules/ximgproc/src/structured_edge_detection.cpp

cv::FileStorage modelFile(filename, FileStorage::READ) Why does it work with

ifstream::binary

Do I have to recompile the "structured_edge_detection.cpp or cv::Filestorage with cmake?

Thanks for looking into this with me.

I've created the EdgeBoxes.cpp Example DLL for LabVIEW using OpenCV. I'm trying to open the model file in the DLL but all I get is an assertion fail. I also created VI's for morphology, Corner detection, hough transformation but never got any error messages like that.

I tried:

Every path combination using Forward slashes or back slashes. Putting every file into the same Folder(also in C:). (LabVIEW VI, DLL, ModelFile) To open it in LabVIEW first with "Open/Create/Replace.vi" To open the extracted model.yml file instead of model.yml.gz That's the point where I'm clueless:

string filename = "C:\model.yml.gz"
Ptr<structurededgedetection> "C:/model.yml.gz"
Ptr<StructuredEdgeDetection> pDollar; = createStructuredEdgeDetection(filename);

std::ifstream is(filename, std::ifstream::binary);
 
std::ifstream::binary);
is.seekg(0, is.end);
int length = is.tellg();
is.seekg(0, is.beg);
 
is.beg);

char * buffer = new char[length];
 
char[length];
is.read(buffer, length);
is.close();
delete[] buffer;    // buffer contains the entire file
Update: 2

cv::FileStorage modelFile(filename, FileStorage::READ)

ifstream::binary